<?php
/**
 * Created by PhpStorm.
 * User: 颖inv
 * Date: 2016/9/28
 * Time: 19:52
 */
header('Content-type:text/html;charset=utf-8');
?>
<!doctype html>
<html>
    <head>
        <meta charset="utf-8">
        <title>打印金字塔</title>
        <style>
            .bordered{border: solid 3px #000; float: left; overflow: hidden;}
            .box{background-color: #000000; margin:3px; padding: 2px; font-size: 20px;
                font-weight: bold; color: #ffffff; font-family: "Courier New";}
        </style>
    </head>
    <body>
    <div class="bordered">
        <div class="box">
            <?php
            $line=1;
            while($line<=5){
                $empty_pos=$star_pos=1;
                $empty=5-$line;
                $star=2*$line-1;
                while($empty_pos<= $empty){
                    echo '&nbsp;';
                    ++$empty_pos;
                }
                while ($star_pos<=$star){
                    echo '*';
                    ++$star_pos;
                }
                echo '<br>';
                ++$line;
            }
            ?>
        </div>
    </div>


    </body>
</html>
